Chhattisgarh hosts a wide variety of minerals found associated with igneous, sedimentary and metamorphic rock formation. A few of them form large economic deposits while a number of other minerals are reported as occurrences. Large deposits of Coal, Iron ore, Limestone, Dolomite and Bauxite are located in parts of the State. Diamondiferous kimberlites identified in Raipur district are also likely to yield substantial quantity of diamonds. Tin (Cassiterite) bearing pegmatites containing moderate deposits are also known. Medium to small deposits of gold, base-metals, quartzite, soapstone/steatite, fluorite, corundum, graphite, lepidolite, amblygonite of workable size are also known that may grade in the category of large deposits after exploration. Occurrences of garnet, amethyst, beryl, andalucite, kyanite, sillimanite and rare precious mineral alexandrite are also reported from different parts of the State. A few of these may prove to be of sizable deposit. Deposits of grey, pink, red and black (dolerite, amphibolite and gabbro), granites and flagstone of grey, black and purple shades are widely distributed that are suitable for dimension stone and decorative purposes.